<!DOCTYPE html>
<html>
<head>
  <title>Fishbone Layout</title>
  <!-- Copyright 1998-2016 by Northwoods Software Corporation. -->
  <meta charset="UTF-8">
  <script src="go.js"></script>
  <link href="../assets/css/goSamples.css" rel="stylesheet" type="text/css" />  <!-- you don't need to use this -->
  <script src="goSamples.js"></script>  <!-- this is only for the GoJS Samples framework -->
  <script src="FishboneLayout.js"></script>

  <script id="code">
    function init() {
      if (window.goSamples) goSamples();  // init for these samples -- you don't need to call this
      var $ = go.GraphObject.make;  // for conciseness in defining templates

      myDiagram =
        $(go.Diagram, "myDiagramDiv",  // refers to its DIV HTML element by id
          { isReadOnly: true });  // do not allow the user to modify the diagram

      // define the normal node template, just some text
      myDiagram.nodeTemplate =
        $(go.Node, "Auto",
          $(go.TextBlock,
            new go.Binding("text"),
            new go.Binding("font", "", convertFont))
        );

      function convertFont(data) {
        var size = data.size;
        if (size === undefined) size = 13;
        var weight = data.weight;
        if (weight === undefined) weight = "";
        return weight + " " + size + "px sans-serif";
      }

      // This demo switches the Diagram.linkTemplate between the "normal" and the "fishbone" templates.
      // If you are only doing a FishboneLayout, you could just set Diagram.linkTemplate
      // to the template named "fishbone" here, and not switch templates dynamically.

      // define the non-fishbone link template
      myDiagram.linkTemplateMap.add("normal",
        $(go.Link,
          { routing: go.Link.Orthogonal, corner: 4 },
          $(go.Shape)
        ));

      // use this link template for fishbone layouts
      myDiagram.linkTemplateMap.add("fishbone",
        $(FishboneLink,  // defined above
          $(go.Shape)
        ));

      // here is the structured data used to build the model
      var json =
        { "text":"Incorrect Deliveries", "size":18, "weight":"Bold", "causes":[
          { "text":"Skills", "size":14, "weight":"Bold", "causes":[
            { "text":"knowledge", "weight":"Bold", "causes":[
              { "text":"procedures", "causes":[
                { "text":"documentation" }
              ] },
              { "text":"products" }
            ] },
            { "text":"literacy", "weight":"Bold" }
          ] },
          { "text":"Procedures", "size":14, "weight":"Bold", "causes":[
            { "text":"manual", "weight":"Bold", "causes":[
              { "text":"consistency" }
            ] },
            { "text":"automated", "weight":"Bold", "causes":[
              { "text":"correctness" },
              { "text":"reliability" }
            ] }
          ] },
          { "text":"Communication", "size":14, "weight":"Bold", "causes":[
            { "text":"ambiguity", "weight":"Bold" },
            { "text":"sales staff", "weight":"Bold", "causes":[
              { "text":"order details", "causes":[
                { "text":"lack of knowledge" }
              ] }
            ] },
            { "text":"telephone orders", "weight":"Bold", "causes":[
              { "text":"lack of information" }
            ] },
            { "text":"picking slips", "weight":"Bold", "causes":[
              { "text":"details" },
              { "text":"legibility" }
            ] }
          ] },
          { "text":"Transport", "size":14, "weight":"Bold", "causes":[
            { "text":"information", "weight":"Bold", "causes":[
              { "text":"incorrect person" },
              { "text":"incorrect addresses", "causes":[
                { "text":"customer data base", "causes":[
                  { "text":"not up-to-date" },
                  { "text":"incorrect program" }
                ] }
              ] },
              { "text":"incorrect dept" }
            ] },
            { "text":"carriers", "weight":"Bold", "causes":[
              { "text":"efficiency" },
              { "text":"methods" }
            ] }
          ] }
        ] };

      function walkJson(obj, arr) {
        var key = arr.length;
        obj.key = key;
        arr.push(obj);

        var children = obj.causes;
        if (children) {
          for (var i = 0; i < children.length; i++) {
            var o = children[i];
            o.parent = key;  // reference to parent node data
            walkJson(o, arr);
          }
        }
      }

      // build the tree model
      var nodeDataArray = [];
      walkJson(json, nodeDataArray);
      myDiagram.model = new go.TreeModel(nodeDataArray);

      layoutFishbone();
    }

    // use FishboneLayout and FishboneLink
    function layoutFishbone() {
      myDiagram.startTransaction("fishbone layout");
      myDiagram.linkTemplate = myDiagram.linkTemplateMap.getValue("fishbone");
      myDiagram.layout = go.GraphObject.make(FishboneLayout, {  // defined above
        angle: 180,
        layerSpacing: 10,
        nodeSpacing: 20,
        rowSpacing: 10
      });
      myDiagram.commitTransaction("fishbone layout");
    }

    // make the layout a branching tree layout and use a normal link template
    function layoutBranching() {
      myDiagram.startTransaction("branching layout");
      myDiagram.linkTemplate = myDiagram.linkTemplateMap.getValue("normal");
      myDiagram.layout = go.GraphObject.make(go.TreeLayout, {
        angle: 180,
        layerSpacing: 20,
        alignment: go.TreeLayout.AlignmentBusBranching
      });
      myDiagram.commitTransaction("branching layout");
    }

    // make the layout a basic tree layout and use a normal link template
    function layoutNormal() {
      myDiagram.startTransaction("normal layout");
      myDiagram.linkTemplate = myDiagram.linkTemplateMap.getValue("normal");
      myDiagram.layout = go.GraphObject.make(go.TreeLayout, {
        angle: 180,
        breadthLimit: 1000,
        alignment: go.TreeLayout.AlignmentStart
      });
      myDiagram.commitTransaction("normal layout");
    }
  </script>
</head>
<body onload="init()">
<div id="sample">
  <div id="myDiagramDiv" style="height:550px;width:100%;border:1px solid black;"></div>
  <div id="buttons">
    <label>Layout:</label>
    <button onclick="layoutFishbone()">Fishbone</button>
    <button onclick="layoutBranching()">Branching</button>
    <button onclick="layoutNormal()">Normal</button>
  </div>
  <br />
  <div id="description">
    <p>
    This sample shows a "fishbone" layout of a tree model of cause-and-effect relationships.
    This type of layout is often seen in root cause analysis, or RCA.
    The layout is defined in its own file, as <a href="FishboneLayout.js">FishboneLayout.js</a>.
    When using FishboneLayout the diagram uses FishboneLink in order to get custom routing for the links.
    </p>
    <p>
    The buttons each set the <a>Diagram.layout</a> within a transaction.
    </p>
  </div>
</div>
</body>
</html>
